Bromocresol green
Systematic (IUPAC) name
2,6-dibromo- 4-[7-(3,5-dibromo-4-hydroxy-2-methyl-phenyl)- 9,9-dioxo-8-oxa-9λ6-thiabicyclo[4.3.0]nona- 1,3,5-trien-7-yl]-3-methyl-phenol
Identifiers
PubChem	6451
Chemical data
Formula	C21H14Br4O5S
Mol. weight	698.02
Complete data

Bromocresol green (3,3',5,5'-tetrabromo-m-cresolsulfonphthalein) is a dye of the triphenylmethane family (triarylmethane dyes), which is used as a pH indicator and as a tracking dye for DNA agarose gel electrophoresis. It can be used in its free acid form (light brown solid), or as a sodium salt (dark green solid). IUPAC nomenclature is a systematic way of naming organic chemical compounds. ... PubChem is a database of chemical molecules . ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... This article is about the chemistry of hydrogen. ... General Name, Symbol, Number bromine, Br, 35 Chemical series halogens Group, Period, Block 17, 4, p Appearance gas/liquid: red-brown solid: metallic luster Atomic mass 79. ... General Name, Symbol, Number oxygen, O, 8 Chemical series Nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Atomic mass 15. ... General Name, Symbol, Number sulfur, S, 16 Chemical series nonmetals Group, Period, Block 16, 3, p Appearance lemon yellow Atomic mass 32. ... The molecular mass of a substance (less accurately called molecular weight and abbreviated as MW) is the mass of one molecule of that substance, relative to the unified atomic mass unit u (equal to 1/12 the mass of one atom of carbon-12). ... french: triphényl méthane english: triphenyl methane other: methane triphenyl Boiling point: 78,2 C (from CRC Handbook) Categories: Chemistry stubs ... A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or alkalinity) of the solution can be determined easily. ... The structure of part of a DNA double helix Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living organisms. ... Digital printout of an agarose gel electrophoresis of cat-insert plasmid DNA Agarose gel electrophoresis is a method used in biochemistry and molecular biology to separate DNA strands by size, and to estimate the size of the separated strands by comparison to known fragments (DNA ladder). ...

In aqueous solution, both solids ionize to give the monoanionic form (yellow), that further deprotonates at higher pH to give the dianionic form (blue), which is stabilized by resonance: Drinking water This article focuses on water as we experience it every day. ... Dissociation in chemistry and biochemistry is a general process in which complexes, molecules, or salts separate or split into smaller molecules, ions, or radicals, usually in a reversible manner. ... An anion is an ion with negative charge. ... The common (Arrhenius) definition of a base is a chemical compound that either donates hydroxide ions or absorbs hydrogen ions when dissolved in water. ... An anion is an ion with negative charge. ... This article is about resonance in physics. ...

The pK (pKa) of this reaction is 4.9. PK may stand for: Pakistan (ISO country code PK) Pakistan International Airlines (IATA airline code PK) Paperinik Park (map abbreviation) Parkour, an extreme sport Peak (map abbreviation) Penalty kick, in association football (soccer) Pharmacokinetics PK machine gun Placekicker, in American football Player killer (in MMORPGs, MUDs and other computer role... In chemistry and biochemistry, acid dissociation constant, the acidity constant, or the acid-ionization constant () is a specific type of equilibrium constant that indicates the extent of dissociation of hydrogen ions from an acid. ...

The acid and basic form of this dye have an isosbestic point in their spectra, around 515 nm. It has been suggested that isobestic point be merged into this article or section. ... Spectra are conditions or values that vary over a continuum. ... NM may stand for: Neurofiber Mitosis, a nerve disease, sometimes confused with Neurofibromatosis nm (Unix), a computer program Nautical mile (nm) New Mexico (NM) Newton metre (N m or N·m), a unit of moment Nanometre (nm, 10-9 m), a thousand-millionth of a metre Never mind or not...

A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or alkalinity) of the solution can be determined easily. ...

References

1. ^a  PubChem 6451

PubChem is a database of chemical molecules . ...

External links

• Links to external chemical sources